UniProtKB/Swiss-Prot P22681: Variant p.Asp390Tyr

E3 ubiquitin-protein ligase CBL
Gene: CBL
Chromosomal location: 11q23.3
Variant information

Variant position:  390
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Aspartate (D) to Tyrosine (Y) at position 390 (D390Y, p.Asp390Tyr).
Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.

Physico-chemical properties:  Change from medium size and acidic (D) to large size and aromatic (Y)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Variant description:  In NSLL; causes impaired CBL-mediated degradation of cell-surface receptors in a dominant-negative fashion.
Any additional useful information about the variant.

Sequence information

Variant position:  390
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  906
The length of the canonical sequence.

The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.

Residue conservation: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.



Fission yeast                 ------SALDMILRCCKSNSHV---VAGHDLYG--------

Sequence annotation in neighborhood:  
The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.

Chain 1 – 906 E3 ubiquitin-protein ligase CBL
Zinc finger 381 – 420 RING-type
Compositional bias 357 – 476 Asp/Glu-rich (acidic)
Modified residue 371 – 371 Phosphotyrosine; by INSR
Mutagenesis 371 – 371 Y -> F. Strongly reduces tyrosine phosphorylation by INSR; when associated with F-700 and F-774.
Mutagenesis 381 – 381 C -> A. Loss of ubiquitin ligase activity.

Literature citations

Heterozygous germline mutations in the CBL tumor-suppressor gene cause a Noonan syndrome-like phenotype.
Martinelli S.; De Luca A.; Stellacci E.; Rossi C.; Checquolo S.; Lepri F.; Caputo V.; Silvano M.; Buscherini F.; Consoli F.; Ferrara G.; Digilio M.C.; Cavaliere M.L.; van Hagen J.M.; Zampino G.; van der Burgt I.; Ferrero G.B.; Mazzanti L.; Screpanti I.; Yntema H.G.; Nillesen W.M.; Savarirayan R.; Zenker M.; Dallapiccola B.; Gelb B.D.; Tartaglia M.;
Am. J. Hum. Genet. 87:250-257(2010)

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.